Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / gpu / drm / radeon / radeon_uvd.c
1 /*
2  * Copyright 2011 Advanced Micro Devices, Inc.
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining a
6  * copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sub license, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
16  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
17  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
18  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
19  * USE OR OTHER DEALINGS IN THE SOFTWARE.
20  *
21  * The above copyright notice and this permission notice (including the
22  * next paragraph) shall be included in all copies or substantial portions
23  * of the Software.
24  *
25  */
26 /*
27  * Authors:
28  *    Christian König <deathsimple@vodafone.de>
29  */
30
31 #include <linux/firmware.h>
32 #include <linux/module.h>
33 #include <drm/drmP.h>
34 #include <drm/drm.h>
35
36 #include "radeon.h"
37 #include "r600d.h"
38
39 /* 1 second timeout */
40 #define UVD_IDLE_TIMEOUT_MS     1000
41
42 /* Firmware Names */
43 #define FIRMWARE_RV710          "radeon/RV710_uvd.bin"
44 #define FIRMWARE_CYPRESS        "radeon/CYPRESS_uvd.bin"
45 #define FIRMWARE_SUMO           "radeon/SUMO_uvd.bin"
46 #define FIRMWARE_TAHITI         "radeon/TAHITI_uvd.bin"
47 #define FIRMWARE_BONAIRE        "radeon/BONAIRE_uvd.bin"
48
49 MODULE_FIRMWARE(FIRMWARE_RV710);
50 MODULE_FIRMWARE(FIRMWARE_CYPRESS);
51 MODULE_FIRMWARE(FIRMWARE_SUMO);
52 MODULE_FIRMWARE(FIRMWARE_TAHITI);
53 MODULE_FIRMWARE(FIRMWARE_BONAIRE);
54
55 static void radeon_uvd_idle_work_handler(struct work_struct *work);
56
57 int radeon_uvd_init(struct radeon_device *rdev)
58 {
59         unsigned long bo_size;
60         const char *fw_name;
61         int i, r;
62
63         INIT_DELAYED_WORK(&rdev->uvd.idle_work, radeon_uvd_idle_work_handler);
64
65         switch (rdev->family) {
66         case CHIP_RV710:
67         case CHIP_RV730:
68         case CHIP_RV740:
69                 fw_name = FIRMWARE_RV710;
70                 break;
71
72         case CHIP_CYPRESS:
73         case CHIP_HEMLOCK:
74         case CHIP_JUNIPER:
75         case CHIP_REDWOOD:
76         case CHIP_CEDAR:
77                 fw_name = FIRMWARE_CYPRESS;
78                 break;
79
80         case CHIP_SUMO:
81         case CHIP_SUMO2:
82         case CHIP_PALM:
83         case CHIP_CAYMAN:
84         case CHIP_BARTS:
85         case CHIP_TURKS:
86         case CHIP_CAICOS:
87                 fw_name = FIRMWARE_SUMO;
88                 break;
89
90         case CHIP_TAHITI:
91         case CHIP_VERDE:
92         case CHIP_PITCAIRN:
93         case CHIP_ARUBA:
94                 fw_name = FIRMWARE_TAHITI;
95                 break;
96
97         case CHIP_BONAIRE:
98         case CHIP_KABINI:
99         case CHIP_KAVERI:
100                 fw_name = FIRMWARE_BONAIRE;
101                 break;
102
103         default:
104                 return -EINVAL;
105         }
106
107         r = request_firmware(&rdev->uvd_fw, fw_name, rdev->dev);
108         if (r) {
109                 dev_err(rdev->dev, "radeon_uvd: Can't load firmware \"%s\"\n",
110                         fw_name);
111                 return r;
112         }
113
114         bo_size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size + 8) +
115                   RADEON_UVD_STACK_SIZE + RADEON_UVD_HEAP_SIZE;
116         r = radeon_bo_create(rdev, bo_size, PAGE_SIZE, true,
117                              RADEON_GEM_DOMAIN_VRAM, NULL, &rdev->uvd.vcpu_bo);
118         if (r) {
119                 dev_err(rdev->dev, "(%d) failed to allocate UVD bo\n", r);
120                 return r;
121         }
122
123         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
124         if (r) {
125                 radeon_bo_unref(&rdev->uvd.vcpu_bo);
126                 dev_err(rdev->dev, "(%d) failed to reserve UVD bo\n", r);
127                 return r;
128         }
129
130         r = radeon_bo_pin(rdev->uvd.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
131                           &rdev->uvd.gpu_addr);
132         if (r) {
133                 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
134                 radeon_bo_unref(&rdev->uvd.vcpu_bo);
135                 dev_err(rdev->dev, "(%d) UVD bo pin failed\n", r);
136                 return r;
137         }
138
139         r = radeon_bo_kmap(rdev->uvd.vcpu_bo, &rdev->uvd.cpu_addr);
140         if (r) {
141                 dev_err(rdev->dev, "(%d) UVD map failed\n", r);
142                 return r;
143         }
144
145         radeon_bo_unreserve(rdev->uvd.vcpu_bo);
146
147         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
148                 atomic_set(&rdev->uvd.handles[i], 0);
149                 rdev->uvd.filp[i] = NULL;
150         }
151
152         return 0;
153 }
154
155 void radeon_uvd_fini(struct radeon_device *rdev)
156 {
157         int r;
158
159         if (rdev->uvd.vcpu_bo == NULL)
160                 return;
161
162         r = radeon_bo_reserve(rdev->uvd.vcpu_bo, false);
163         if (!r) {
164                 radeon_bo_kunmap(rdev->uvd.vcpu_bo);
165                 radeon_bo_unpin(rdev->uvd.vcpu_bo);
166                 radeon_bo_unreserve(rdev->uvd.vcpu_bo);
167         }
168
169         radeon_bo_unref(&rdev->uvd.vcpu_bo);
170
171         release_firmware(rdev->uvd_fw);
172 }
173
174 int radeon_uvd_suspend(struct radeon_device *rdev)
175 {
176         unsigned size;
177         void *ptr;
178         int i;
179
180         if (rdev->uvd.vcpu_bo == NULL)
181                 return 0;
182
183         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i)
184                 if (atomic_read(&rdev->uvd.handles[i]))
185                         break;
186
187         if (i == RADEON_MAX_UVD_HANDLES)
188                 return 0;
189
190         size = radeon_bo_size(rdev->uvd.vcpu_bo);
191         size -= rdev->uvd_fw->size;
192
193         ptr = rdev->uvd.cpu_addr;
194         ptr += rdev->uvd_fw->size;
195
196         rdev->uvd.saved_bo = kmalloc(size, GFP_KERNEL);
197         memcpy(rdev->uvd.saved_bo, ptr, size);
198
199         return 0;
200 }
201
202 int radeon_uvd_resume(struct radeon_device *rdev)
203 {
204         unsigned size;
205         void *ptr;
206
207         if (rdev->uvd.vcpu_bo == NULL)
208                 return -EINVAL;
209
210         memcpy(rdev->uvd.cpu_addr, rdev->uvd_fw->data, rdev->uvd_fw->size);
211
212         size = radeon_bo_size(rdev->uvd.vcpu_bo);
213         size -= rdev->uvd_fw->size;
214
215         ptr = rdev->uvd.cpu_addr;
216         ptr += rdev->uvd_fw->size;
217
218         if (rdev->uvd.saved_bo != NULL) {
219                 memcpy(ptr, rdev->uvd.saved_bo, size);
220                 kfree(rdev->uvd.saved_bo);
221                 rdev->uvd.saved_bo = NULL;
222         } else
223                 memset(ptr, 0, size);
224
225         return 0;
226 }
227
228 void radeon_uvd_force_into_uvd_segment(struct radeon_bo *rbo)
229 {
230         rbo->placement.fpfn = 0 >> PAGE_SHIFT;
231         rbo->placement.lpfn = (256 * 1024 * 1024) >> PAGE_SHIFT;
232 }
233
234 void radeon_uvd_free_handles(struct radeon_device *rdev, struct drm_file *filp)
235 {
236         int i, r;
237         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
238                 uint32_t handle = atomic_read(&rdev->uvd.handles[i]);
239                 if (handle != 0 && rdev->uvd.filp[i] == filp) {
240                         struct radeon_fence *fence;
241
242                         r = radeon_uvd_get_destroy_msg(rdev,
243                                 R600_RING_TYPE_UVD_INDEX, handle, &fence);
244                         if (r) {
245                                 DRM_ERROR("Error destroying UVD (%d)!\n", r);
246                                 continue;
247                         }
248
249                         radeon_fence_wait(fence, false);
250                         radeon_fence_unref(&fence);
251
252                         rdev->uvd.filp[i] = NULL;
253                         atomic_set(&rdev->uvd.handles[i], 0);
254                 }
255         }
256 }
257
258 static int radeon_uvd_cs_msg_decode(uint32_t *msg, unsigned buf_sizes[])
259 {
260         unsigned stream_type = msg[4];
261         unsigned width = msg[6];
262         unsigned height = msg[7];
263         unsigned dpb_size = msg[9];
264         unsigned pitch = msg[28];
265
266         unsigned width_in_mb = width / 16;
267         unsigned height_in_mb = ALIGN(height / 16, 2);
268
269         unsigned image_size, tmp, min_dpb_size;
270
271         image_size = width * height;
272         image_size += image_size / 2;
273         image_size = ALIGN(image_size, 1024);
274
275         switch (stream_type) {
276         case 0: /* H264 */
277
278                 /* reference picture buffer */
279                 min_dpb_size = image_size * 17;
280
281                 /* macroblock context buffer */
282                 min_dpb_size += width_in_mb * height_in_mb * 17 * 192;
283
284                 /* IT surface buffer */
285                 min_dpb_size += width_in_mb * height_in_mb * 32;
286                 break;
287
288         case 1: /* VC1 */
289
290                 /* reference picture buffer */
291                 min_dpb_size = image_size * 3;
292
293                 /* CONTEXT_BUFFER */
294                 min_dpb_size += width_in_mb * height_in_mb * 128;
295
296                 /* IT surface buffer */
297                 min_dpb_size += width_in_mb * 64;
298
299                 /* DB surface buffer */
300                 min_dpb_size += width_in_mb * 128;
301
302                 /* BP */
303                 tmp = max(width_in_mb, height_in_mb);
304                 min_dpb_size += ALIGN(tmp * 7 * 16, 64);
305                 break;
306
307         case 3: /* MPEG2 */
308
309                 /* reference picture buffer */
310                 min_dpb_size = image_size * 3;
311                 break;
312
313         case 4: /* MPEG4 */
314
315                 /* reference picture buffer */
316                 min_dpb_size = image_size * 3;
317
318                 /* CM */
319                 min_dpb_size += width_in_mb * height_in_mb * 64;
320
321                 /* IT surface buffer */
322                 min_dpb_size += ALIGN(width_in_mb * height_in_mb * 32, 64);
323                 break;
324
325         default:
326                 DRM_ERROR("UVD codec not handled %d!\n", stream_type);
327                 return -EINVAL;
328         }
329
330         if (width > pitch) {
331                 DRM_ERROR("Invalid UVD decoding target pitch!\n");
332                 return -EINVAL;
333         }
334
335         if (dpb_size < min_dpb_size) {
336                 DRM_ERROR("Invalid dpb_size in UVD message (%d / %d)!\n",
337                           dpb_size, min_dpb_size);
338                 return -EINVAL;
339         }
340
341         buf_sizes[0x1] = dpb_size;
342         buf_sizes[0x2] = image_size;
343         return 0;
344 }
345
346 static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
347                              unsigned offset, unsigned buf_sizes[])
348 {
349         int32_t *msg, msg_type, handle;
350         void *ptr;
351
352         int i, r;
353
354         if (offset & 0x3F) {
355                 DRM_ERROR("UVD messages must be 64 byte aligned!\n");
356                 return -EINVAL;
357         }
358
359         if (bo->tbo.sync_obj) {
360                 r = radeon_fence_wait(bo->tbo.sync_obj, false);
361                 if (r) {
362                         DRM_ERROR("Failed waiting for UVD message (%d)!\n", r);
363                         return r;
364                 }
365         }
366
367         r = radeon_bo_kmap(bo, &ptr);
368         if (r) {
369                 DRM_ERROR("Failed mapping the UVD message (%d)!\n", r);
370                 return r;
371         }
372
373         msg = ptr + offset;
374
375         msg_type = msg[1];
376         handle = msg[2];
377
378         if (handle == 0) {
379                 DRM_ERROR("Invalid UVD handle!\n");
380                 return -EINVAL;
381         }
382
383         if (msg_type == 1) {
384                 /* it's a decode msg, calc buffer sizes */
385                 r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
386                 radeon_bo_kunmap(bo);
387                 if (r)
388                         return r;
389
390         } else if (msg_type == 2) {
391                 /* it's a destroy msg, free the handle */
392                 for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i)
393                         atomic_cmpxchg(&p->rdev->uvd.handles[i], handle, 0);
394                 radeon_bo_kunmap(bo);
395                 return 0;
396         } else {
397                 radeon_bo_kunmap(bo);
398
399                 if (msg_type != 0) {
400                         DRM_ERROR("Illegal UVD message type (%d)!\n", msg_type);
401                         return -EINVAL;
402                 }
403
404                 /* it's a create msg, no special handling needed */
405         }
406
407         /* create or decode, validate the handle */
408         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
409                 if (atomic_read(&p->rdev->uvd.handles[i]) == handle)
410                         return 0;
411         }
412
413         /* handle not found try to alloc a new one */
414         for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
415                 if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) {
416                         p->rdev->uvd.filp[i] = p->filp;
417                         return 0;
418                 }
419         }
420
421         DRM_ERROR("No more free UVD handles!\n");
422         return -EINVAL;
423 }
424
425 static int radeon_uvd_cs_reloc(struct radeon_cs_parser *p,
426                                int data0, int data1,
427                                unsigned buf_sizes[], bool *has_msg_cmd)
428 {
429         struct radeon_cs_chunk *relocs_chunk;
430         struct radeon_cs_reloc *reloc;
431         unsigned idx, cmd, offset;
432         uint64_t start, end;
433         int r;
434
435         relocs_chunk = &p->chunks[p->chunk_relocs_idx];
436         offset = radeon_get_ib_value(p, data0);
437         idx = radeon_get_ib_value(p, data1);
438         if (idx >= relocs_chunk->length_dw) {
439                 DRM_ERROR("Relocs at %d after relocations chunk end %d !\n",
440                           idx, relocs_chunk->length_dw);
441                 return -EINVAL;
442         }
443
444         reloc = p->relocs_ptr[(idx / 4)];
445         start = reloc->lobj.gpu_offset;
446         end = start + radeon_bo_size(reloc->robj);
447         start += offset;
448
449         p->ib.ptr[data0] = start & 0xFFFFFFFF;
450         p->ib.ptr[data1] = start >> 32;
451
452         cmd = radeon_get_ib_value(p, p->idx) >> 1;
453
454         if (cmd < 0x4) {
455                 if ((end - start) < buf_sizes[cmd]) {
456                         DRM_ERROR("buffer (%d) to small (%d / %d)!\n", cmd,
457                                   (unsigned)(end - start), buf_sizes[cmd]);
458                         return -EINVAL;
459                 }
460
461         } else if (cmd != 0x100) {
462                 DRM_ERROR("invalid UVD command %X!\n", cmd);
463                 return -EINVAL;
464         }
465
466         if ((start >> 28) != (end >> 28)) {
467                 DRM_ERROR("reloc %LX-%LX crossing 256MB boundary!\n",
468                           start, end);
469                 return -EINVAL;
470         }
471
472         /* TODO: is this still necessary on NI+ ? */
473         if ((cmd == 0 || cmd == 0x3) &&
474             (start >> 28) != (p->rdev->uvd.gpu_addr >> 28)) {
475                 DRM_ERROR("msg/fb buffer %LX-%LX out of 256MB segment!\n",
476                           start, end);
477                 return -EINVAL;
478         }
479
480         if (cmd == 0) {
481                 if (*has_msg_cmd) {
482                         DRM_ERROR("More than one message in a UVD-IB!\n");
483                         return -EINVAL;
484                 }
485                 *has_msg_cmd = true;
486                 r = radeon_uvd_cs_msg(p, reloc->robj, offset, buf_sizes);
487                 if (r)
488                         return r;
489         } else if (!*has_msg_cmd) {
490                 DRM_ERROR("Message needed before other commands are send!\n");
491                 return -EINVAL;
492         }
493
494         return 0;
495 }
496
497 static int radeon_uvd_cs_reg(struct radeon_cs_parser *p,
498                              struct radeon_cs_packet *pkt,
499                              int *data0, int *data1,
500                              unsigned buf_sizes[],
501                              bool *has_msg_cmd)
502 {
503         int i, r;
504
505         p->idx++;
506         for (i = 0; i <= pkt->count; ++i) {
507                 switch (pkt->reg + i*4) {
508                 case UVD_GPCOM_VCPU_DATA0:
509                         *data0 = p->idx;
510                         break;
511                 case UVD_GPCOM_VCPU_DATA1:
512                         *data1 = p->idx;
513                         break;
514                 case UVD_GPCOM_VCPU_CMD:
515                         r = radeon_uvd_cs_reloc(p, *data0, *data1,
516                                                 buf_sizes, has_msg_cmd);
517                         if (r)
518                                 return r;
519                         break;
520                 case UVD_ENGINE_CNTL:
521                         break;
522                 default:
523                         DRM_ERROR("Invalid reg 0x%X!\n",
524                                   pkt->reg + i*4);
525                         return -EINVAL;
526                 }
527                 p->idx++;
528         }
529         return 0;
530 }
531
532 int radeon_uvd_cs_parse(struct radeon_cs_parser *p)
533 {
534         struct radeon_cs_packet pkt;
535         int r, data0 = 0, data1 = 0;
536
537         /* does the IB has a msg command */
538         bool has_msg_cmd = false;
539
540         /* minimum buffer sizes */
541         unsigned buf_sizes[] = {
542                 [0x00000000]    =       2048,
543                 [0x00000001]    =       32 * 1024 * 1024,
544                 [0x00000002]    =       2048 * 1152 * 3,
545                 [0x00000003]    =       2048,
546         };
547
548         if (p->chunks[p->chunk_ib_idx].length_dw % 16) {
549                 DRM_ERROR("UVD IB length (%d) not 16 dwords aligned!\n",
550                           p->chunks[p->chunk_ib_idx].length_dw);
551                 return -EINVAL;
552         }
553
554         if (p->chunk_relocs_idx == -1) {
555                 DRM_ERROR("No relocation chunk !\n");
556                 return -EINVAL;
557         }
558
559
560         do {
561                 r = radeon_cs_packet_parse(p, &pkt, p->idx);
562                 if (r)
563                         return r;
564                 switch (pkt.type) {
565                 case RADEON_PACKET_TYPE0:
566                         r = radeon_uvd_cs_reg(p, &pkt, &data0, &data1,
567                                               buf_sizes, &has_msg_cmd);
568                         if (r)
569                                 return r;
570                         break;
571                 case RADEON_PACKET_TYPE2:
572                         p->idx += pkt.count + 2;
573                         break;
574                 default:
575                         DRM_ERROR("Unknown packet type %d !\n", pkt.type);
576                         return -EINVAL;
577                 }
578         } while (p->idx < p->chunks[p->chunk_ib_idx].length_dw);
579
580         if (!has_msg_cmd) {
581                 DRM_ERROR("UVD-IBs need a msg command!\n");
582                 return -EINVAL;
583         }
584
585         return 0;
586 }
587
588 static int radeon_uvd_send_msg(struct radeon_device *rdev,
589                                int ring, struct radeon_bo *bo,
590                                struct radeon_fence **fence)
591 {
592         struct ttm_validate_buffer tv;
593         struct ww_acquire_ctx ticket;
594         struct list_head head;
595         struct radeon_ib ib;
596         uint64_t addr;
597         int i, r;
598
599         memset(&tv, 0, sizeof(tv));
600         tv.bo = &bo->tbo;
601
602         INIT_LIST_HEAD(&head);
603         list_add(&tv.head, &head);
604
605         r = ttm_eu_reserve_buffers(&ticket, &head);
606         if (r)
607                 return r;
608
609         radeon_ttm_placement_from_domain(bo, RADEON_GEM_DOMAIN_VRAM);
610         radeon_uvd_force_into_uvd_segment(bo);
611
612         r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
613         if (r) 
614                 goto err;
615
616         r = radeon_ib_get(rdev, ring, &ib, NULL, 16);
617         if (r)
618                 goto err;
619
620         addr = radeon_bo_gpu_offset(bo);
621         ib.ptr[0] = PACKET0(UVD_GPCOM_VCPU_DATA0, 0);
622         ib.ptr[1] = addr;
623         ib.ptr[2] = PACKET0(UVD_GPCOM_VCPU_DATA1, 0);
624         ib.ptr[3] = addr >> 32;
625         ib.ptr[4] = PACKET0(UVD_GPCOM_VCPU_CMD, 0);
626         ib.ptr[5] = 0;
627         for (i = 6; i < 16; ++i)
628                 ib.ptr[i] = PACKET2(0);
629         ib.length_dw = 16;
630
631         r = radeon_ib_schedule(rdev, &ib, NULL);
632         if (r)
633                 goto err;
634         ttm_eu_fence_buffer_objects(&ticket, &head, ib.fence);
635
636         if (fence)
637                 *fence = radeon_fence_ref(ib.fence);
638
639         radeon_ib_free(rdev, &ib);
640         radeon_bo_unref(&bo);
641         return 0;
642
643 err:
644         ttm_eu_backoff_reservation(&ticket, &head);
645         return r;
646 }
647
648 /* multiple fence commands without any stream commands in between can
649    crash the vcpu so just try to emmit a dummy create/destroy msg to
650    avoid this */
651 int radeon_uvd_get_create_msg(struct radeon_device *rdev, int ring,
652                               uint32_t handle, struct radeon_fence **fence)
653 {
654         struct radeon_bo *bo;
655         uint32_t *msg;
656         int r, i;
657
658         r = radeon_bo_create(rdev, 1024, PAGE_SIZE, true,
659                              RADEON_GEM_DOMAIN_VRAM, NULL, &bo);
660         if (r)
661                 return r;
662
663         r = radeon_bo_reserve(bo, false);
664         if (r) {
665                 radeon_bo_unref(&bo);
666                 return r;
667         }
668
669         r = radeon_bo_kmap(bo, (void **)&msg);
670         if (r) {
671                 radeon_bo_unreserve(bo);
672                 radeon_bo_unref(&bo);
673                 return r;
674         }
675
676         /* stitch together an UVD create msg */
677         msg[0] = cpu_to_le32(0x00000de4);
678         msg[1] = cpu_to_le32(0x00000000);
679         msg[2] = cpu_to_le32(handle);
680         msg[3] = cpu_to_le32(0x00000000);
681         msg[4] = cpu_to_le32(0x00000000);
682         msg[5] = cpu_to_le32(0x00000000);
683         msg[6] = cpu_to_le32(0x00000000);
684         msg[7] = cpu_to_le32(0x00000780);
685         msg[8] = cpu_to_le32(0x00000440);
686         msg[9] = cpu_to_le32(0x00000000);
687         msg[10] = cpu_to_le32(0x01b37000);
688         for (i = 11; i < 1024; ++i)
689                 msg[i] = cpu_to_le32(0x0);
690
691         radeon_bo_kunmap(bo);
692         radeon_bo_unreserve(bo);
693
694         return radeon_uvd_send_msg(rdev, ring, bo, fence);
695 }
696
697 int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
698                                uint32_t handle, struct radeon_fence **fence)
699 {
700         struct radeon_bo *bo;
701         uint32_t *msg;
702         int r, i;
703
704         r = radeon_bo_create(rdev, 1024, PAGE_SIZE, true,
705                              RADEON_GEM_DOMAIN_VRAM, NULL, &bo);
706         if (r)
707                 return r;
708
709         r = radeon_bo_reserve(bo, false);
710         if (r) {
711                 radeon_bo_unref(&bo);
712                 return r;
713         }
714
715         r = radeon_bo_kmap(bo, (void **)&msg);
716         if (r) {
717                 radeon_bo_unreserve(bo);
718                 radeon_bo_unref(&bo);
719                 return r;
720         }
721
722         /* stitch together an UVD destroy msg */
723         msg[0] = cpu_to_le32(0x00000de4);
724         msg[1] = cpu_to_le32(0x00000002);
725         msg[2] = cpu_to_le32(handle);
726         msg[3] = cpu_to_le32(0x00000000);
727         for (i = 4; i < 1024; ++i)
728                 msg[i] = cpu_to_le32(0x0);
729
730         radeon_bo_kunmap(bo);
731         radeon_bo_unreserve(bo);
732
733         return radeon_uvd_send_msg(rdev, ring, bo, fence);
734 }
735
736 static void radeon_uvd_idle_work_handler(struct work_struct *work)
737 {
738         struct radeon_device *rdev =
739                 container_of(work, struct radeon_device, uvd.idle_work.work);
740
741         if (radeon_fence_count_emitted(rdev, R600_RING_TYPE_UVD_INDEX) == 0) {
742                 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
743                         mutex_lock(&rdev->pm.mutex);
744                         rdev->pm.dpm.uvd_active = false;
745                         mutex_unlock(&rdev->pm.mutex);
746                         radeon_pm_compute_clocks(rdev);
747                 } else {
748                         radeon_set_uvd_clocks(rdev, 0, 0);
749                 }
750         } else {
751                 schedule_delayed_work(&rdev->uvd.idle_work,
752                                       msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
753         }
754 }
755
756 void radeon_uvd_note_usage(struct radeon_device *rdev)
757 {
758         bool set_clocks = !cancel_delayed_work_sync(&rdev->uvd.idle_work);
759         set_clocks &= schedule_delayed_work(&rdev->uvd.idle_work,
760                                             msecs_to_jiffies(UVD_IDLE_TIMEOUT_MS));
761         if (set_clocks) {
762                 if ((rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) {
763                         /* XXX pick SD/HD/MVC */
764                         radeon_dpm_enable_power_state(rdev, POWER_STATE_TYPE_INTERNAL_UVD);
765                 } else {
766                         radeon_set_uvd_clocks(rdev, 53300, 40000);
767                 }
768         }
769 }
770
771 static unsigned radeon_uvd_calc_upll_post_div(unsigned vco_freq,
772                                               unsigned target_freq,
773                                               unsigned pd_min,
774                                               unsigned pd_even)
775 {
776         unsigned post_div = vco_freq / target_freq;
777
778         /* adjust to post divider minimum value */
779         if (post_div < pd_min)
780                 post_div = pd_min;
781
782         /* we alway need a frequency less than or equal the target */
783         if ((vco_freq / post_div) > target_freq)
784                 post_div += 1;
785
786         /* post dividers above a certain value must be even */
787         if (post_div > pd_even && post_div % 2)
788                 post_div += 1;
789
790         return post_div;
791 }
792
793 /**
794  * radeon_uvd_calc_upll_dividers - calc UPLL clock dividers
795  *
796  * @rdev: radeon_device pointer
797  * @vclk: wanted VCLK
798  * @dclk: wanted DCLK
799  * @vco_min: minimum VCO frequency
800  * @vco_max: maximum VCO frequency
801  * @fb_factor: factor to multiply vco freq with
802  * @fb_mask: limit and bitmask for feedback divider
803  * @pd_min: post divider minimum
804  * @pd_max: post divider maximum
805  * @pd_even: post divider must be even above this value
806  * @optimal_fb_div: resulting feedback divider
807  * @optimal_vclk_div: resulting vclk post divider
808  * @optimal_dclk_div: resulting dclk post divider
809  *
810  * Calculate dividers for UVDs UPLL (R6xx-SI, except APUs).
811  * Returns zero on success -EINVAL on error.
812  */
813 int radeon_uvd_calc_upll_dividers(struct radeon_device *rdev,
814                                   unsigned vclk, unsigned dclk,
815                                   unsigned vco_min, unsigned vco_max,
816                                   unsigned fb_factor, unsigned fb_mask,
817                                   unsigned pd_min, unsigned pd_max,
818                                   unsigned pd_even,
819                                   unsigned *optimal_fb_div,
820                                   unsigned *optimal_vclk_div,
821                                   unsigned *optimal_dclk_div)
822 {
823         unsigned vco_freq, ref_freq = rdev->clock.spll.reference_freq;
824
825         /* start off with something large */
826         unsigned optimal_score = ~0;
827
828         /* loop through vco from low to high */
829         vco_min = max(max(vco_min, vclk), dclk);
830         for (vco_freq = vco_min; vco_freq <= vco_max; vco_freq += 100) {
831
832                 uint64_t fb_div = (uint64_t)vco_freq * fb_factor;
833                 unsigned vclk_div, dclk_div, score;
834
835                 do_div(fb_div, ref_freq);
836
837                 /* fb div out of range ? */
838                 if (fb_div > fb_mask)
839                         break; /* it can oly get worse */
840
841                 fb_div &= fb_mask;
842
843                 /* calc vclk divider with current vco freq */
844                 vclk_div = radeon_uvd_calc_upll_post_div(vco_freq, vclk,
845                                                          pd_min, pd_even);
846                 if (vclk_div > pd_max)
847                         break; /* vco is too big, it has to stop */
848
849                 /* calc dclk divider with current vco freq */
850                 dclk_div = radeon_uvd_calc_upll_post_div(vco_freq, dclk,
851                                                          pd_min, pd_even);
852                 if (vclk_div > pd_max)
853                         break; /* vco is too big, it has to stop */
854
855                 /* calc score with current vco freq */
856                 score = vclk - (vco_freq / vclk_div) + dclk - (vco_freq / dclk_div);
857
858                 /* determine if this vco setting is better than current optimal settings */
859                 if (score < optimal_score) {
860                         *optimal_fb_div = fb_div;
861                         *optimal_vclk_div = vclk_div;
862                         *optimal_dclk_div = dclk_div;
863                         optimal_score = score;
864                         if (optimal_score == 0)
865                                 break; /* it can't get better than this */
866                 }
867         }
868
869         /* did we found a valid setup ? */
870         if (optimal_score == ~0)
871                 return -EINVAL;
872
873         return 0;
874 }
875
876 int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev,
877                                 unsigned cg_upll_func_cntl)
878 {
879         unsigned i;
880
881         /* make sure UPLL_CTLREQ is deasserted */
882         WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
883
884         mdelay(10);
885
886         /* assert UPLL_CTLREQ */
887         WREG32_P(cg_upll_func_cntl, UPLL_CTLREQ_MASK, ~UPLL_CTLREQ_MASK);
888
889         /* wait for CTLACK and CTLACK2 to get asserted */
890         for (i = 0; i < 100; ++i) {
891                 uint32_t mask = UPLL_CTLACK_MASK | UPLL_CTLACK2_MASK;
892                 if ((RREG32(cg_upll_func_cntl) & mask) == mask)
893                         break;
894                 mdelay(10);
895         }
896
897         /* deassert UPLL_CTLREQ */
898         WREG32_P(cg_upll_func_cntl, 0, ~UPLL_CTLREQ_MASK);
899
900         if (i == 100) {
901                 DRM_ERROR("Timeout setting UVD clocks!\n");
902                 return -ETIMEDOUT;
903         }
904
905         return 0;
906 }